Use the following function to work out how long it has been since an event in years, months, weeks, days, hours, minutes and seconds.
function getAge($year,$month,$day,$hour=0,$minute=0,$second=0){
$age = mktime($hour,$minute,$second,$month,$day,$year);
$age = time()-$age;
return array('years'=>$age/60/60/24/365,
'months'=>$age/60/60/24/12,
'weeks'=>$age/60/60/24/7,
'days'=>$age/60/60/24,
'hours'=>$age/60/60,
'minutes'=>$age/60,
'seconds'=>$age);
}The practical use of this function is that you can work out how old someone is from their birthday. Here is an example of the function in use.
// someone's birthday
echo '<pre>'.print_r(getAge(1984,10,4),true).'</pre>';Which would output the following:
Array
(
[years] => 23.721673198884
[months] => 721.53422646605
[weeks] => 1236.9158167989
[days] => 8658.4107175926
[hours] => 207801.85722222
[minutes] => 12468111.433333
[seconds] => 748086686
)Any function like this can be tested by putting in the current time, if you get zero across the board then the function works.